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Old 11 February 2012, 16:29   #1
blueboy758's Avatar
Country: UK - England
Town: Thornaby
Boat name: Storm
Make: Humber Ocean Pro 6.5
Length: 6m +
Engine: Suzuki DF 150
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Evinrude 115 ficht, Missfire

as above my ficht always starts and is totally fine untill i want to give it WOT then the engine seems to missfire.
i've had new plugs, filters and changed petrol stations (bad fuel) but it still happens, could it just be startved of fuel?? is there a minimum size fuel line that should be on this motor??

thank you


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Old 12 February 2012, 00:47   #2
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Pikey Dave's Avatar
Country: UK - England
Town: South Yorks
Boat name: Black Pig
Make: Ribcraft
Length: 6m +
Engine: 2 x 115 Etecs/DF140a
MMSI: 235060745/235111389
Join Date: Feb 2008
Posts: 6,409
3\8 id fuel line. Could be a plug lead or coil breaking down. You need to get the diagnostic software & laptop on it & drop the cylinders out one at a time to see which is the culprit.
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Old 12 February 2012, 12:44   #3
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Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,829
Could be an injector

Do as Pikey says and get it checked out using the diagnostic software, laptop and someone who knows how to use it otherwise it could be costly.

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Old 13 February 2012, 16:21   #4
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Posts: 1
Could be carbon build up in cylinders.
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